code: regress

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git: add test for lca algorithm

--- /dev/null

+++ b/cmd/git/lca.rc

@@ -1,0 +1,41 @@

+#!/bin/rc

+

+. ../util.rc

+

+rm -fr scratch

+mkdir -p scratch

+cd scratch

+

+echo @@ test lca @@

+@{

+	q git/init a

+

+	cd a

+

+	echo 'first' > f

+	q git/add f

+	q git/commit -m base f

+	r=`{git/query HEAD}

+

+	echo 0 > f

+	q git/commit -m a.0 .

+	a=`{git/query HEAD}

+

+	for(i in `{seq 10}){

+		echo $i > f

+		q git/commit -m a.$i .

+	}

+

+	q git/branch -nb $r merge

+	echo x > f

+	q git/commit -m b.0 .

+	b=`{git/query HEAD}

+

+	qq git/merge front

+	q git/commit -m merge .

+	m=`{git/query HEAD}

+

+~ `{git/query $a $m @} $a || die lca a-m

+~ `{git/query $a $b @} $r || die lca a-b

+~ `{git/query $a $r @} $r || die lca a-r

+}

--- a/cmd/git/mkfile

+++ b/cmd/git/mkfile

@@ -4,6 +4,7 @@

 	add\

 	basic\

 	export\

+	lca\

 	merge

 <../../regress